Printing mechanism



G. F. DALY Nov. 29, 193s.

PRINTING MECHANISM Filed Nov. 15, 1955 2 Shets-Sheefc l 7)vlam-0RATTORNEY Nov. 29,71938. G. FjDALY PRINTING MEGHANISM Filed N0`V. l5,1935 2 Sheets-Sheet 2 REGISTER, ADDRESS, FLOORI STORE GARD MTE,

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.nssaaaaaaa gy'e'rn ATTORNEY PatentedNov. 29, 1938 PRINTING MECHANISMGeorge F. Daly, West Orange, N. J., asslgnor to International BusinessMachines Corporation, New York, N. Y., a corporation ot New vYorkApplication November 13, 1935, Serial No. 49,480

4 Claims.

utilizing one or more of the timed impulses to control printingmechanism. v

In certain classes of work where dates or the like are to be printedunder control of record cards, it has been necessary toeiectperforations representing the dates to be printed, on the record cards.If these cards later are to be utilized in preparing other reports inwhich the perforated date is not desired. but someother date isrequired, it has been-necessary to re-perforate the cards in another eldwith the new date, or, if space is not available on the card, todispense with such printing. In accordance with the present invention,it is proposed to set aside a iield of all record cards from which datesare to be printed and in such field to arbitrarily punch a holerepresenti'ng I in the first column, 2 in the second column, 3 in thethird column, and so on, up to 9, Thes fields as they feed through themachine are a alyzed and circuits potentially established by the holesin the card columns at times represented by the location of theperforations in the several columns. l

If, for example, it is desired to have the record card print apredetermined date, such as 6-29, representing June 29th, the columnscontaining the 6, 2, and 9 perforations are manually selected tocomplete circuits at such times to lenergize printing magnets which inturn position type bars to print 6-29'. If the same card is to beutilized in connection with some other report to print, for example, thenumber 15558, a further manual selection in the columns containing theI, 5, and 8 perforations is made to' cause these columns to control thepositioning of the type bars to select` the number for printing. I Inaccordance with a modied form of the invention a commutator device isprovided which is arranged to close circuits at successive times in thesame manner as the series of periorations in the record cards, thusmaking the utilization of the separate punchedileld unnecessary.

Various other objects and' advantages of the (Cl. lol-93) invention willbe obvious from the following particular description of one form ofmechanism embodying the invention or from an inspection of theaccompanying drawings; andthe invention also constitutes 'certain newand useful features 5 of construction and combination oi' partshereinafter set forth and claimed.

In the drawings:

Fig. l represents the printing circuits of the tabulating machineinvolved in the operation of 10 the invention.x

Fig. 2 is a similar view showing the arrangement according to themodified form of the invention.

Fig. 3 is a representation of the printing -mecha- 16 nism.

Fig. 4 is a specimen of a fragment of a record' card having a eldperforated for carrying out the objects of the invention. y

The general arrangement of the machine is 20 substantially as disclosedin the patent to Daly and Page, No. 1,762,145, to which reference may bemade 'for details of construction and operation of the parts of themachine with which the present invention is not specifically concerned.In 25 such machines, record cards, as in Fig. 4, are suc` cessivelymoved to pass a row of analyzing brushes so that theindex pointpositions 9, 8, 1, etc. are sensed by the brushes, in succession As thecards move Apast the brushes, printing type 30 bars I0 (Fig. 3) moveupwardly to passprinting position opposite platen II as the card passesthe brushes Aand the timing is such that the 9 type element I2 is atprinting position as the 9" index point position is at the brushes andthe other type 35 elements I2 will be at the printing position as thecorrespondingly numbered index point positions of the card are at thesensing brushes. As any position containing a perforation is sensed bythe A brushes, a circuit will be completed to printing magnet I3 which,upon energization, will attract j, its armature I4 to rock allatchJS,thereby releas-/- ing stopping pawl I6 for engagement with one of theteeth I1 of the -type bar I0, to interrupt the type bar with the typeelement I2 corresponding 45 to the perforation sensed, at the printingline.

The type bars are carried by a crosshead I8 mounted for verticalreciprocatlon on rods I 9 and are urged upwardly by spring-operatedlevers I9 5o pivoted to the crosshead so that upon vinterruption ofmovement of a type bar, the crosshead will continue to move upwardly andlever I9 will yield to permit the type bar to remain in its adjustedposition. 55

The brushes 23 are further connected throughv lower card lever contactsLCL to one side of line 25. The contacts LCL are closed during theperiod the card is passing the brushes. In the circuit are also shownprint magnets .I3 which-are connected through a commutator 26 and camcontacts 21 to the left side of line 28. The record card (Fig. 4) isprovided with a lield comprising nine columns, which eld is designated29. The columns `are numbered 1 to 9 and a series of perforations asindicated is made in which the first column has a perforation in the Iindex point position, the second column a perforation in the 2 indexpoint position, and so on. The brushes which traverse these nine columnsare indicated in Fig. 1 by the numerals l to 9 and as the iield 29passes these-brushes, contact will be made therethrough in successiveorder. The brushes LB are provided with multiple plug sockets 30 fromwhich plug connections 3l may be made to plug sockets 32 wired to theprinting magnets I3. Thus, for example, if a plug connection is madefrom the 2 brush socket 30,

to one of the sockets 32, a circuit would be completed from the 2"perforation analyzed to energize the magnet I3 at such time andinterrupt its related type bar with the 2 type element in printingposition. Similar connections to the other sockets 30 will causeenergization of the magnets 30 at times depending upon the brush LB towhich connection has been made.

In Fig. 1 are shown three connections for controlling the printing ofthe date June 29th. for

. which a connection 3| is made from the 2, 6,

and 9 sockets 30 to three adjacent sockets 32 and as the eld passes thebrushes, the selected type bars will be positioned to print 6-29.

In Fig. 2 is shown a modified form of the invention in which acommutator 33 having conducting segments 34 electrically connected to acommon ring 35 receive current from a brush 36 connected to the brushes23. The segments 34 are arranged and timed to contact the brushes 31 atthe same time that the correspondingly numbered'index point positionsare encountered by the brushes LB and it will be appreciated that thecircuits completed will be similar to those explained in connection withFig. 1. In Fig. 2 are shown plug connections 3| for printing the number15558 in which use of the multiple plug sockets 30 enables the 5 brush31 to complete three parallel circuits to position three adjacent typebars with the 5 type element in printing position.

While there has .been shown and described and pointed out thefundamental novel features of 2,138,627 the invention as applied to asingle modication,

it will be understood that various omissionsgand substitutions andchanges in the form and details of the device illustrated and in itsoperation may be made by those skilled in theart without departing fromthe spirit of the invention. It is the intention therefore to be limitedonly as indicated by the scope of the following claims.

' What is claimed is as follows: 1. In a machine of the class described,a plurality of type carriers, means for moving the same to printingposition, and means 'for causing the selective positioning of saidcarriers in the same manner for each operation to repeatedly print anumber, said last named means comprising a plurality of magnets, one foreach carrier, a series of contacts, one for each digit, plug connectionsbetween said magnets and the contacts arranged in accordance with thenumber to be repeatedly printed and a commutator for completing circuitsthrough said contacts in succession for each operation of the carriers.

2. In a machine of the class described, a plurality of type carriers,means for moving the same -to printing position, and means for'causingthe selective positioning of saidv carriers in the same manner for eachoperation to repeatedly print a number, said last named means comprisinga piurality of magnets, one for each carrier, a series of contacts, onefor each digit, plug connections between said magnets and the contactsarranged in accordance with the number to be repeatedly printed andincluding circuit closing means for between saidmagnets and the contactsarranged in accordance with the number to be repeatedly printed andincluding circuit closing means for completing circuits through saidcontacts in succession for each operation of the carriers.

y 4. In a machine of the class described, a plurality of type carriers,means for moving the same to printing position and means forA causingthe selective positioning of said carriers 'in the same manner for eachoperation to repeatedly print a number, saidlast named means ccmprisving a plurality of controlling devices, one for eachcarrier, a. seriesof control elements, one for each digit, connections betweenpsaidcontrollingdevices and saidcontrol elements arranged in accordance withthe number to be repeatedly printed and including means for causing saidcontrol elements to render said controlling devices eil'ective throughsaid connections in succession for each operation of the carriers.

GEORGE F. DALY.

